QMC 4055C

ASME B30.5 / IMPERIAL 85%

Basis of Design
ItemDescriptionRemarks
Truck chassisPer customer
Driver weight250 poundsIncluded in analysis
Fuel tank100 gallonsIncluded in analysis
Hydraulic tank75 gallonsIncluded in analysis, location may vary
Tool box36” longSize may vary, aluminum construction
Minimum Frame Requirements

Minimum selection modulus per rail = 17.8 in.3

Minimum yield strength = 110 KSI

Weight Distribution
 FrontRearTotal
Truck10,6404,73015,370
Crane6,00013,75019,750
Payload1,1601,5202,680
Totals17,80020,00037,800

Total axle limits shown are based on Federal D.O.T. regulations bridge formula.

Truck dimensions, weights, payload, and lifting performance representative of design baseline. Variations from information shown (truck weights, wheel base, front axle to back of cab, and more) may be accommodated and may result in adjustment of payload, payload size, and crane lifting capacity. Contact QMC Cranes with your requirements.

Load Chart

24 Foot Boom
Working
Radius
Boom
Angle
Rated Load
RearSideFront
67745,40045,40045,400
87245,40045,40045,400
106740,20040,20040,200
126135,40035,40035,400
155230,20030,20030,200
184224,90024,90017,600
203322,10022,10012,700
23017,80016,8008,500
39 Foot Boom
Working
Radius
Boom
Angle
Rated Load
RearSideFront
107836,00036,00036,000
127531,20031,20031,200
157026,10026,10026,100
186522,70022,70018,100
206120,90020,90013,200
255217,00013,6007,400
304213,0008,4004,800
352710,3005,7003,200
38.508,9004,5002,500
55 Foot Boom
Working
Radius
Boom
Angle
Rated Load
RearSideFront
157822,30022,30022,300
187419,80019,80018,300
207218,20018,20013,400
256614,70013,8007,500
306012,4008,5004,900
355310,4005,9003,400
40468,6004,3002,400
45377,2003,2001,700
50256,0002,4001,200
5405,2001,900900

Red lines indicate transition from structural to tipping limits. Loads above the line are based on structural limits. Loads below the line are based on 85% actual tipping condition per ASME B30.5.

Wire Rope Capacity
Parts Line12345678
Load Limit9,08018,16027,24036,32045,400000

Do not exceed parts of line ratings.

  1. Load does not include blocks, slings, and all other equipment used to handle objects being lifted.
  2. Load ratings are for zero degree list.
  3. Loads must be freely suspended.
  4. Rope: Rotation resistant, compacted strand, 9080 lb. capacity.
  5. This chart is only a guide and should not be used to operate the crane. Individual crane’s load chart, operating instructions, and other instructional plates must be read and understood prior to operating crane.